Fuselage inspection plates

How to keep the Cessna 170 flying and airworthy.

Moderators: GAHorn, Karl Towle, Bruce Fenstermacher

Post Reply
User avatar
mike.bernath
Posts: 24
Joined: Mon Mar 26, 2018 5:56 pm

Fuselage inspection plates

Post by mike.bernath »

What type of inspection plates are correct for the underside of the fuselage on a 1948 Rag? I’m missing some plates under the cabin area on the “belly”. Thanks.
User avatar
GAHorn
Posts: 20967
Joined: Fri Apr 12, 2002 8:45 pm

Re: Fuselage inspection plates

Post by GAHorn »

Look at Figs 15 and 16 of the IPC.
'53 B-model N146YS SN:25713
50th Anniversary of Flight Model. Winner-Best Original 170B, 100th Anniversary of Flight Convention.
An originality nut (mostly) for the right reasons. ;)
User avatar
mike.bernath
Posts: 24
Joined: Mon Mar 26, 2018 5:56 pm

Re: Fuselage inspection plates

Post by mike.bernath »

I can’t see it in detail with my manual.
User avatar
n2582d
Posts: 2808
Joined: Mon Apr 29, 2002 4:58 am

Re: Fuselage inspection plates

Post by n2582d »

Mike,
The inspection plates are the same ones used on the cabin floor. Take a look at the IPC listing here:
Click to Enlarge
Click to Enlarge
You can see it lists 11 inspection plates at fig. 15-2 (p/n 0311516) which should require 33 fasteners. So the second line of 15-2 is for 27 snap fasteners in the floor inspection covers (p/n 49330) and fig. 15-3 is for the 6 PK screws to attach the two inspection plates on the bottom of the fuselage. If you're an originality nut you'll have two additional inspection plates that have carpet glued to them (fig. 15-1).
Gary
User avatar
mike.bernath
Posts: 24
Joined: Mon Mar 26, 2018 5:56 pm

Re: Fuselage inspection plates

Post by mike.bernath »

My IPC has illustrations 15/16. I do not show a 15-2. Are any more common Cessna 172’s inspection plates compatible with the early 170’s? I’ve searched the part numbers above and don’t see them anywhere for sale. Thanks.
User avatar
lowNslow
Posts: 1530
Joined: Mon Apr 22, 2002 4:20 pm

Re: Fuselage inspection plates

Post by lowNslow »

The superseded part number is S225-2 and they are available at http://www.cessnaparts.com for $63. 8O
You may want to check some of the wrecking yards.
Karl
'53 170B N3158B SN:25400
ASW-20BL
User avatar
mike.bernath
Posts: 24
Joined: Mon Mar 26, 2018 5:56 pm

Re: Fuselage inspection plates

Post by mike.bernath »

I drive past a yard in Georgia soon. Thanks for the new part number.
Post Reply